Dublin apartment residents could have their parking spaces taken away to make way for a new underground transport plan.
The draft plan published by the National Transport Authority (NTA) will see an underground train line from Dublin city centre to Dublin Airport.
The plan was previously scaled back and will now not be delivered until 2031.
Other public transport improvements such as a Luas line into North Dublin towards Finglas and an extension towards Poolbeg, Lucan and Bray have all been pushed back for at least ten years.
However, the new transport plans will eventually mean a big change for residents in Dublin City Centre.
Speaking on RTE's Today with Claire Bryne, Associate professor of the School of Engineering at Trinity College, Brian Caulfield said: "There's plans to change the regulation of parking in Dublin city centre.
"The amount of parking that is given to apartments and there's also a plan in there to reduce and remove any public sector parking in the city centre.
"We know that to have a parking space is an enabler to drive- there's a number of policies in there to take those types of things out of the city."
Mr Caulfield said he understood that Dublin apartment residents might be upset by the plans.
He said: "To move to this more densely populated city and that's kind of what we need to have, the more densely populated this city is the easier it is to provide good public transport.
"And that's kind of the core behind this whole strategy, that the parking availability would decrease and then people living in the city centre would start to take alternative modes of transport.
"Not saying all cars would be taken out, they could use shared cars etc, but walking and cycling would become a lot easier, electric mobility would come in terms of e-bikes and e-scooters."
If this is done, Mr Caulfield said cycling would become safer for everyone in Dublin's city centre as more measures can be put in place.
He added: "When you look at the map for Dublin, it looks very European, the type of city that we could have at the end of it all. And it's a city that I think we would all want to live in."
